/* Checks planet names */

#include <stdio.h>
#include <string.h>

#define NUM_PLANETS 9

int main(int argc, char **argv)
{
    char *planets[] = {"Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune", "Pluto"};
    int i, j;
    for (i = 1; i < argc; i++)
    {
        for (j = 0; j < NUM_PLANETS; j++)
        {
            if (strcmp (argv[i], planets[j]) == 0)
            {
                printf ("%s is planet %d\n", argv[i], j + 1);
                break;
            }
        }
        if (j == NUM_PLANETS)
        {
            printf ("%s is not a planet\n", argv[i]);
        }
    }
    return 0;
}
